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CN114182136B - A kind of copper-aluminum pre-alloy, preparation method, diamond tool - Google Patents

A kind of copper-aluminum pre-alloy, preparation method, diamond tool Download PDF

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CN114182136B
CN114182136B CN202210076340.7A CN202210076340A CN114182136B CN 114182136 B CN114182136 B CN 114182136B CN 202210076340 A CN202210076340 A CN 202210076340A CN 114182136 B CN114182136 B CN 114182136B
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copper
alloy
parts
mass
aluminum
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CN114182136A (en
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钟素娟
耿进峰
王琴
马佳
于奇
潘建军
王路乙
于新泉
潘世师
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Zhengzhou Machinery Research Institute Co Ltd Of China National Machinery Institute Group
Ningbo Academy of Intelligent Machine Tool Co Ltd of China Academy of Machinery
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Zhengzhou Research Institute of Mechanical Engineering Co Ltd
China Innovation Academy of Intelligent Equipment Co Ltd CIAIE
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C9/00Alloys based on copper
    • C22C9/01Alloys based on copper with aluminium as the next major constituent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00Casting ingots, e.g. from ferrous metals
    • B22D7/005Casting ingots, e.g. from ferrous metals from non-ferrous metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/04Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00Tools for sawing machines or sawing devices; Clamping devices for these tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0009Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/02Making non-ferrous alloys by melting
    • C22C1/03Making non-ferrous alloys by melting using master alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C30/00Alloys containing less than 50% by weight of each constituent
    • C22C30/02Alloys containing less than 50% by weight of each constituent containing copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C30/00Alloys containing less than 50% by weight of each constituent
    • C22C30/04Alloys containing less than 50% by weight of each constituent containing tin or lead
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C30/00Alloys containing less than 50% by weight of each constituent
    • C22C30/06Alloys containing less than 50% by weight of each constituent containing zinc
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Powder Metallurgy (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

本发明提供了一种铜铝预合金、制备方法、金刚石工具;铜铝预合金包括以下成分:铝,12质量份至24质量份;锌,4质量份至6质量份;锡,0质量份至12质量份;铁,3质量份至5质量份;硅,1质量份至4质量份;镍,3质量份至5质量份;铜,44质量份至77质量份。本发明提供的铜铝预合金可以用于金刚石工具,提高工具的性能和使用寿命。The invention provides a copper-aluminum pre-alloy, a preparation method and a diamond tool; the copper-aluminum pre-alloy comprises the following components: aluminum, 12 to 24 parts by mass; zinc, 4 to 6 parts by mass; and tin, 0 parts by mass to 12 parts by mass; iron, 3 to 5 parts by mass; silicon, 1 to 4 parts by mass; nickel, 3 to 5 parts by mass; and copper, 44 to 77 parts by mass. The copper-aluminum pre-alloy provided by the invention can be used for diamond tools, so as to improve the performance and service life of the tools.

Description

一种铜铝预合金、制备方法、金刚石工具A kind of copper-aluminum pre-alloy, preparation method, diamond tool

技术领域technical field

本发明涉及合金技术领域,具体而言,涉及一种铜铝预合金、制备方法、金刚石工具。The invention relates to the technical field of alloys, in particular to a copper-aluminum pre-alloy, a preparation method and a diamond tool.

背景技术Background technique

金刚石工具是指用金刚石颗粒或者粉末作为组要原料制备得到的工具,由于充分发挥了金刚石本身超硬、耐磨、耐高温、耐腐蚀等优异的综合工具材料性能,在工程建设、汽车机械、石材陶瓷、石油钻探、军工航天等领域有着非常广泛且重要的应用。Diamond tools refer to tools prepared with diamond particles or powders as the main raw material. Due to the full use of the diamond itself's excellent comprehensive tool material properties such as superhardness, wear resistance, high temperature resistance and corrosion resistance, it is widely used in engineering construction, automotive machinery, Stone ceramics, oil drilling, military aerospace and other fields have very extensive and important applications.

但是目前金刚石工具的锋利程度还不能满足实际的使用需求。However, the current sharpness of diamond tools can not meet the actual needs of use.

发明内容SUMMARY OF THE INVENTION

针对上述问题,一方面,本发明旨在提供一种铜铝预合金,可以添加至金刚石工具中,提高工具的锋利程度。In view of the above problems, on the one hand, the present invention aims to provide a copper-aluminum pre-alloy, which can be added to a diamond tool to improve the sharpness of the tool.

一种铜铝预合金,包括以下成分:铝,12质量份至24质量份;锌,4质量份至8质量份;锡,0质量份至12质量份;铁,3质量份至5质量份;硅,1质量份至4质量份;镍,3质量份至5质量份;铜,42质量份至77质量份。A copper-aluminum pre-alloy, comprising the following components: aluminum, 12 to 24 parts by mass; zinc, 4 to 8 parts by mass; tin, 0 to 12 parts by mass; and iron, 3 to 5 parts by mass ; silicon, 1 to 4 parts by mass; nickel, 3 to 5 parts by mass; copper, 42 to 77 parts by mass.

在金刚石的制备过程中可以添加金属粉末或者合金来提高其综合性能,但是元素的选择和配比,以及添加方式均有可能影响合金化的过程,从而导致金刚石工具的性能不稳定。因而本发明提供一种铜铝预合金粉末,铜作为金刚石工具中粘结相,具有高热导率,保证工具磨削过程中散热良好,具有良好的塑形,容易烧结,铜与多种元素固溶度较好,利于元素充分合金化。铝对金刚石润湿角较小,在高温下与金刚石表面形成Al4C3化合物,单质铝粉在金刚石工具制造过程中极易偏析,且单质铝粉表面极易形成致密氧化膜,在烧结过程中影响合金化过程,直接导致金刚石工具性能不稳定,甚至恶化工具性能。In the preparation process of diamond, metal powder or alloy can be added to improve its comprehensive performance, but the selection and ratio of elements, as well as the addition method, may affect the alloying process, resulting in unstable performance of diamond tools. Therefore, the present invention provides a copper-aluminum pre-alloyed powder. As a bonding phase in a diamond tool, copper has high thermal conductivity, ensures good heat dissipation during tool grinding, has good shaping, is easy to sinter, and is solid with various elements. The solubility is good, which is conducive to the full alloying of the elements. The wetting angle of aluminum to diamond is small, and Al 4 C 3 compounds are formed with the diamond surface at high temperature. The elemental aluminum powder is very easy to segregate during the manufacturing process of diamond tools, and the surface of the elemental aluminum powder is very easy to form a dense oxide film. During the sintering process It affects the alloying process directly, which directly leads to unstable performance of diamond tools, and even deteriorates the performance of tools.

因而本发明实施例提供给一种铜铝预合金,铝可以和铜相互扩散形成固溶体,起到固溶强化作用,当铝含量为12-24%,合金硬度增加,脆性和耐磨性能提升明显。当铝含量在12%时,铜铝合金摩擦系数稳定,材料变形量小。合金中加入少量镍能提高材料的摩擦系数和耐磨性能,添加少量铁能够细化晶粒。合金中通过加入低熔点锌、锡、硅,可降低熔点,生成较多的硬脆相和金属间化合物,粉末熔点降低、脆性增加,提高机械法制粉效率,降低生产成本。在本实施例中,各个成分的质量份之和为100。Therefore, the embodiment of the present invention provides a copper-aluminum pre-alloy. Aluminum can diffuse with copper to form a solid solution, which plays a role of solid solution strengthening. When the aluminum content is 12-24%, the hardness of the alloy increases, and the brittleness and wear resistance are significantly improved. . When the aluminum content is 12%, the friction coefficient of copper-aluminum alloy is stable and the material deformation is small. Adding a small amount of nickel to the alloy can improve the friction coefficient and wear resistance of the material, and adding a small amount of iron can refine the grains. By adding low melting point zinc, tin, and silicon to the alloy, the melting point can be lowered, more hard and brittle phases and intermetallic compounds are generated, the melting point of the powder is reduced, the brittleness is increased, the efficiency of mechanical milling is improved, and the production cost is reduced. In this embodiment, the sum of the parts by mass of each component is 100.

进一步地,上述铜铝预合金包括以下成分:铝,15质量份至20质量份;锌,4质量份至6质量份;锡,2质量份至10质量份;铁,3质量份至5质量份;硅,1质量份至4质量份;镍,3质量份至5质量份;铜,50质量份至72质量份。Further, the above-mentioned copper-aluminum pre-alloy includes the following components: aluminum, 15 to 20 parts by mass; zinc, 4 to 6 parts by mass; tin, 2 to 10 parts by mass; iron, 3 to 5 parts by mass parts; silicon, 1 to 4 parts by mass; nickel, 3 to 5 parts by mass; copper, 50 to 72 parts by mass.

在本实施例中,对各成分的质量份进行优选,同样地,各成分的质量份之和为100份。In the present embodiment, the parts by mass of each component are optimized, and similarly, the sum of the parts by mass of each component is 100 parts.

另一方面,本发明还提供一种铜铝预合金的制备方法,包括以下步骤:On the other hand, the present invention also provides a preparation method of copper-aluminum pre-alloy, comprising the following steps:

S10:将铝、锌、硅分别制成铜基中间合金;铜基中间合金包括铜铝合金、铜锌合金和铜硅合金;S10: make aluminum, zinc and silicon into copper-based master alloys; copper-based master alloys include copper-aluminum alloy, copper-zinc alloy and copper-silicon alloy;

S20:在铜基中间合金中加入铜、锡、铁、镍,得到金属原料混合物;S20: adding copper, tin, iron and nickel to the copper-based master alloy to obtain a metal raw material mixture;

S30:对金属原料混合物进行熔炼,得到合金铸锭;合金铸锭为铜铝预合金。S30: Smelting the metal raw material mixture to obtain an alloy ingot; the alloy ingot is a copper-aluminum pre-alloy.

在本实施例中,铜铝预合金的原料配比包括以下成分:铝,12质量份至24质量份;锌,4质量份至8质量份;锡,0质量份至12质量份;铁,3质量份至5质量份;硅,1质量份至4质量份;镍,3质量份至5质量份;铜,42质量份至77质量份。铜铝预合金粉末中铝含量为12~24%,硬脆相较多,稳定摩擦因数的波动程度,同时提高材料的耐磨性能。添加Zn含量4~8%提高材料的摩擦系数,加入0~12%Sn提高材料磨削性能,合金中加入3~5%Ni提高材料综合性能,加入3~5%Fe可细化晶粒,提高合金强度。在制备的过程中,首先将铝、锌、硅分别制成铜基中间合金,然后根据原料配比,加入铜、锡、铁、镍,混合熔炼得到合金铸锭。在本实施例中,铜铝合金中的铜和铝相互扩散形成固溶体,固溶强化,In this embodiment, the raw material ratio of the copper-aluminum pre-alloy includes the following components: aluminum, 12 to 24 parts by mass; zinc, 4 to 8 parts by mass; tin, 0 to 12 parts by mass; iron, 3 to 5 parts by mass; silicon, 1 to 4 parts by mass; nickel, 3 to 5 parts by mass; and copper, 42 to 77 parts by mass. The aluminum content in the copper-aluminum pre-alloyed powder is 12-24%, which is relatively hard and brittle, which stabilizes the fluctuation degree of the friction factor and improves the wear resistance of the material. Adding 4-8% Zn to improve the friction coefficient of the material, adding 0-12% Sn to improve the grinding performance of the material, adding 3-5% Ni to the alloy to improve the overall performance of the material, adding 3-5% Fe can refine the grains, Improve alloy strength. In the preparation process, aluminum, zinc, and silicon are first made into copper-based master alloys, and then copper, tin, iron, and nickel are added according to the ratio of raw materials, and mixed and smelted to obtain alloy ingots. In this embodiment, the copper and aluminum in the copper-aluminum alloy are interdiffused to form a solid solution, and the solid solution is strengthened.

进一步地,S30:对金属原料混合物进行熔炼,得到铜铝预合金;包括:Further, S30: smelting the metal raw material mixture to obtain a copper-aluminum pre-alloy; including:

S31:采用碱性坩埚对金属原料混合物进行熔炼;S31: use an alkaline crucible to smelt the metal raw material mixture;

S32:添加覆盖剂精炼除渣,扒渣后浇铸得到合金铸锭。S32: adding a covering agent to refine and remove slag, and cast the alloy ingot after removing the slag.

在本实施例中,优选碱性坩埚进行熔炼,同时添加覆盖剂,除了隔绝氧气,同时也能保温除渣,提高合金的品质,最后扒渣浇铸即可得到铜铝预合金的铸锭。结合具体的使用需求,可以对合金铸锭进行进一步的处理。In this embodiment, the alkaline crucible is preferably used for smelting, and a covering agent is added at the same time. In addition to isolating oxygen, it can also keep heat and remove slag to improve the quality of the alloy. Finally, the copper-aluminum pre-alloyed ingot can be obtained by slag removal and casting. Combined with specific usage requirements, the alloy ingot can be further processed.

进一步地,碱性坩埚选自镁砂坩埚、氧化钙坩埚或氧化锆坩埚。Further, the alkaline crucible is selected from magnesia crucible, calcium oxide crucible or zirconia crucible.

在本实施例中,镁砂坩埚的耐火度和热稳定性较好,可以保证合金的质量,降低杂质。氧化钙坩埚可以减少合金中的氧、硫等杂质;氧化锆坩埚的高温稳定性能好,在高温条件下不会跟铁、镍、铝等金属发生反应。In this embodiment, the magnesia crucible has good refractoriness and thermal stability, which can ensure the quality of the alloy and reduce impurities. Calcium oxide crucible can reduce impurities such as oxygen and sulfur in alloys; zirconia crucible has good high temperature stability and will not react with iron, nickel, aluminum and other metals under high temperature conditions.

进一步地,覆盖剂包括氟铝酸钾、氯化锌、冰晶石、氟氢化钾中的一种或多种。Further, the covering agent includes one or more of potassium fluoroaluminate, zinc chloride, cryolite, and potassium hydrogen fluoride.

在本实施例中,优选的,覆盖剂为氟铝酸钾、氯化锌、冰晶石和氟氢化钾的混合物,可以均匀覆盖在金属表面,且吸收杂质的能力较强,与空气的隔绝性能好,具备优秀的保温性能。In this embodiment, preferably, the covering agent is a mixture of potassium fluoroaluminate, zinc chloride, cryolite and potassium hydrogen fluoride, which can evenly cover the metal surface, has a strong ability to absorb impurities, and has good isolation performance from air. , with excellent thermal insulation properties.

进一步地,上述制备方法还包括:Further, above-mentioned preparation method also comprises:

S40:将合金铸锭在保护气体环境下,采用机械法破碎得到合金粉末。S40: The alloy ingot is crushed by mechanical method in a protective gas environment to obtain alloy powder.

在本实施例中,将合金铸锭破碎的到合金粉末,也即铜铝预合金粉末。机械法破碎主要利用压碎、击碎和磨削等机械作用,将块状合金粉碎成粉末;本发明提供的铜铝预合金成分设计合理,脆性高,因而采用机械法制粉,效率高且生产成本较低。举例来说,在氮气保护下,利用雷蒙磨将合金破碎,收集粉末后进行筛分,即可得到铜铝预合金粉末。In this embodiment, the alloy ingot is crushed into alloy powder, that is, copper-aluminum pre-alloy powder. Mechanical crushing mainly uses mechanical action such as crushing, crushing and grinding to pulverize the bulk alloy into powder; the copper-aluminum pre-alloy provided by the present invention has reasonable composition design and high brittleness. lower cost. For example, under the protection of nitrogen, the alloy is crushed by a Raymond mill, and the powder is collected and sieved to obtain copper-aluminum pre-alloyed powder.

进一步地,铜铝合金中,铝的质量占比为50-60%;和/或铜锌合金中,锌的质量占比为40-70%;和/或铜硅合金中,硅的质量占比为5-20%。Further, in the copper-aluminum alloy, the mass ratio of aluminum is 50-60%; and/or in the copper-zinc alloy, the mass ratio of zinc is 40-70%; and/or in the copper-silicon alloy, the mass ratio of silicon is ratio of 5-20%.

在本实施例中,具体而言,铜铝合金中,铝的质量占比可以是50%、52%、55%、57%、60%;铜锌合金中,锌的质量占比可以是40%、45%、50%、55%、60%、65%、70%;铜硅合金中,硅的质量占比可以是5%、10%、15%、20%。In this embodiment, specifically, in the copper-aluminum alloy, the mass ratio of aluminum can be 50%, 52%, 55%, 57%, 60%; in the copper-zinc alloy, the mass ratio of zinc can be 40% %, 45%, 50%, 55%, 60%, 65%, 70%; in the copper-silicon alloy, the mass proportion of silicon can be 5%, 10%, 15%, 20%.

再一方面,本发明还提供一种金刚石工具,制备金刚石工具的原料包括上述铜铝预合金。In another aspect, the present invention also provides a diamond tool, and the raw material for preparing the diamond tool includes the above-mentioned copper-aluminum pre-alloy.

在本实施例中,金刚石工具包括磨具、锯切工具、钻探工具以及其他的修正工具、刀具等等;具体的,本发明实施例提供的金刚石工具可以是金刚石钻头、金刚石锯片、金刚石滚刀、金刚石前磨、金刚石后磨等。上述金刚石工具的在制备的过程中,加入了铜铝预合金,举例来说,按照成分配比金刚石工具的原料,并加入铜铝预合金粉末,混合烧结,钎焊至锯片、滚筒、磨轮或者其他工具的基体上,即可得到金刚石工具。In this embodiment, the diamond tools include grinding tools, sawing tools, drilling tools, and other correction tools, cutting tools, etc.; specifically, the diamond tools provided in the embodiments of the present invention may be diamond drill bits, diamond saw blades, diamond rollers, etc. Knives, diamond pre-grinding, diamond post-grinding, etc. In the preparation process of the above-mentioned diamond tools, copper-aluminum pre-alloy is added. For example, the raw materials of diamond tools are proportioned according to the composition, and copper-aluminum pre-alloy powder is added, mixed and sintered, and brazed to saw blades, drums, and grinding wheels. Or on the substrate of other tools, diamond tools can be obtained.

进一步地,铜铝预合金在原料中的质量占比为10-50%。Further, the mass ratio of the copper-aluminum pre-alloy in the raw material is 10-50%.

在本实施例中,铜铝预合金的添加量为10-50%,胎体脆性高,提高工具锋利度。In this embodiment, the addition amount of the copper-aluminum pre-alloy is 10-50%, the brittleness of the carcass is high, and the sharpness of the tool is improved.

具体实施方式Detailed ways

为使本发明的上述目的、特征和优点能够更为明显易懂,下面将对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

为了进一步提高金刚石工具的性能,本发明实施例旨在提供一种铜铝预合金及其制备方法,同时还提供采用了上述铜铝预合金制备得到的金刚石工具。In order to further improve the performance of the diamond tool, the embodiments of the present invention aim to provide a copper-aluminum pre-alloy and a preparation method thereof, and also provide a diamond tool prepared by using the above-mentioned copper-aluminum pre-alloy.

一种铜铝预合金,包括以下成分:铝,12质量份至24质量份;锌,4质量份至8质量份;锡,0质量份至12质量份;铁,3质量份至5质量份;硅,1质量份至4质量份;镍,3质量份至5质量份;铜,42质量份至77质量份。A copper-aluminum pre-alloy, comprising the following components: aluminum, 12 to 24 parts by mass; zinc, 4 to 8 parts by mass; tin, 0 to 12 parts by mass; and iron, 3 to 5 parts by mass ; silicon, 1 to 4 parts by mass; nickel, 3 to 5 parts by mass; copper, 42 to 77 parts by mass.

进一步地,上述铜铝预合金包括以下成分:铝,15质量份至20质量份;锌,4质量份至6质量份;锡,2质量份至10质量份;铁,3质量份至5质量份;硅,1质量份至4质量份;镍,3质量份至5质量份;铜,50质量份至72质量份。一种铜铝预合金的制备方法,包括以下步骤:Further, the above-mentioned copper-aluminum pre-alloy includes the following components: aluminum, 15 to 20 parts by mass; zinc, 4 to 6 parts by mass; tin, 2 to 10 parts by mass; iron, 3 to 5 parts by mass parts; silicon, 1 to 4 parts by mass; nickel, 3 to 5 parts by mass; copper, 50 to 72 parts by mass. A preparation method of copper-aluminum pre-alloy, comprising the following steps:

S10:将铝、锌、硅分别制成铜基中间合金;铜基中间合金包括铜铝合金、铜锌合金和铜硅合金;S10: make aluminum, zinc and silicon into copper-based master alloys; copper-based master alloys include copper-aluminum alloy, copper-zinc alloy and copper-silicon alloy;

S20:在铜基中间合金中加入铜、锡、铁、镍,得到金属原料混合物;S20: adding copper, tin, iron and nickel to the copper-based master alloy to obtain a metal raw material mixture;

S30:对金属原料混合物进行熔炼,得到合金铸锭;合金铸锭为铜铝预合金。S30: Smelting the metal raw material mixture to obtain an alloy ingot; the alloy ingot is a copper-aluminum pre-alloy.

进一步地,S30:对金属原料混合物进行熔炼,得到铜铝预合金;包括:Further, S30: smelting the metal raw material mixture to obtain a copper-aluminum pre-alloy; including:

S31:采用碱性坩埚对金属原料混合物进行熔炼;S31: use an alkaline crucible to smelt the metal raw material mixture;

S32:添加覆盖剂精炼除渣,扒渣后浇铸得到合金铸锭。S32: adding a covering agent to refine and remove slag, and cast the alloy ingot after removing the slag.

进一步地,碱性坩埚选自镁砂坩埚、氧化钙坩埚或氧化锆坩埚。Further, the alkaline crucible is selected from magnesia crucible, calcium oxide crucible or zirconia crucible.

进一步地,覆盖剂包括氟铝酸钾、氯化锌、冰晶石、氟氢化钾中的一种或多种。Further, the covering agent includes one or more of potassium fluoroaluminate, zinc chloride, cryolite, and potassium hydrogen fluoride.

进一步地,上述制备方法还包括:Further, above-mentioned preparation method also comprises:

S40:将合金铸锭在保护气体环境下,采用机械法破碎得到合金粉末。S40: The alloy ingot is crushed by mechanical method in a protective gas environment to obtain alloy powder.

进一步地,铜铝合金中,铝的质量占比为50-60%;和/或铜锌合金中,锌的质量占比为40-70%;和/或铜硅合金中,硅的质量占比为5-20%。Further, in the copper-aluminum alloy, the mass ratio of aluminum is 50-60%; and/or in the copper-zinc alloy, the mass ratio of zinc is 40-70%; and/or in the copper-silicon alloy, the mass ratio of silicon is ratio of 5-20%.

一种金刚石工具,制备金刚石工具的原料包括上述铜铝预合金。A diamond tool, the raw material for preparing the diamond tool includes the above-mentioned copper-aluminum pre-alloy.

进一步地,铜铝预合金在原料中的质量占比为10-50%。Further, the mass ratio of the copper-aluminum pre-alloy in the raw material is 10-50%.

实施例1Example 1

本实施例提供一种铜铝预合金粉末,按照质量份包括以下成分:铝24份;锌8份;铁3份;硅1份;镍3份;铜61份。This embodiment provides a copper-aluminum pre-alloyed powder, which includes the following components according to parts by mass: 24 parts of aluminum; 8 parts of zinc; 3 parts of iron; 1 part of silicon; 3 parts of nickel; and 61 parts of copper.

本实施例还提供上述铜铝预合金粉末的制备方法,包括以下步骤:The present embodiment also provides a method for preparing the above-mentioned copper-aluminum pre-alloyed powder, comprising the following steps:

S10:将铝、锌、硅分别制成铜基中间合金;铜基中间合金包括铜铝合金、铜锌合金和铜硅合金。S10: aluminum, zinc and silicon are respectively made into copper-based master alloys; copper-based master alloys include copper-aluminum alloys, copper-zinc alloys and copper-silicon alloys.

S20:按照成分配比计算各金属原料的添加量,获取上述铜基中间合金,加入铜、锡、铁、镍,得到金属原料混合物。S20: Calculate the addition amount of each metal raw material according to the composition ratio, obtain the above-mentioned copper-based master alloy, and add copper, tin, iron, and nickel to obtain a metal raw material mixture.

S31:采用碱性坩埚对金属原料混合物进行熔炼。S31: Use an alkaline crucible to smelt the metal raw material mixture.

S32:添加覆盖剂精炼除渣,扒渣后浇铸得到合金铸锭。S32: adding a covering agent to refine and remove slag, and cast the alloy ingot after removing the slag.

S40:将合金铸锭在保护气体环境下,采用机械法破碎得到合金粉末。S40: The alloy ingot is crushed by mechanical method in a protective gas environment to obtain alloy powder.

在本实施例中,铜铝合金中,铝的质量占比为60%;铜锌合金中,锌的质量占比为40%;铜硅合金中,硅的质量占比为14.5%。碱性坩埚选用镁砂坩埚。覆盖剂选用氟铝酸钾、氯化锌、冰晶石、氟氢化钾,混合精炼。In this embodiment, in the copper-aluminum alloy, the mass ratio of aluminum is 60%; in the copper-zinc alloy, the mass ratio of zinc is 40%; in the copper-silicon alloy, the mass ratio of silicon is 14.5%. The alkaline crucible is made of magnesia crucible. The covering agent is selected from potassium fluoroaluminate, zinc chloride, cryolite, potassium hydrogen fluoride, mixed and refined.

本实施例提供的合金性质硬脆,破碎制粉效率高。制备合金采用德国耐驰差热分析仪(STA-449)测试合金固液相线,合金的基本性能见表1。The alloy provided by this embodiment is hard and brittle, and has high crushing and milling efficiency. The alloy was prepared using a German NETZSCH differential thermal analyzer (STA-449) to test the solid and liquidus of the alloy. The basic properties of the alloy are shown in Table 1.

表1实施例1合金的基本性能Table 1 Basic properties of the alloy of Example 1

理论密度/(g/cm<sup>3</sup>)Theoretical density/(g/cm<sup>3</sup>) 固相线/(℃)Solidus/(℃) 液相线/(℃)Liquidus/(℃) 5.575.57 652652 791791

制备合金粉末经过破碎筛分-325目,在热压烧结机中制作烧结体样块并测试硬度和强度,数据见表2。The prepared alloy powder was crushed and sieved to -325 mesh, and a sintered body sample was made in a hot pressing sintering machine and tested for hardness and strength. The data are shown in Table 2.

表2粉末烧结体基本性能Table 2 Basic properties of powder sintered body

烧结温度/(℃)Sintering temperature/(℃) 烧结压力/(Mpa)Sintering pressure/(Mpa) 硬度/HRBHardness/HRB 强度/(Mpa)Strength/(Mpa) 620620 2020 118118 108108

制备的铜铝预合金粉末可用于金刚石磨具的制造。The prepared copper-aluminum pre-alloy powder can be used for the manufacture of diamond abrasive tools.

将铜铝预合金粉用于金刚石磨边轮的制造,设计陶瓷磨边轮前磨的配方为Fe粉60份,Cu粉7份,铜铝预合金粉30份,金刚石3份,在金刚石热压烧结机中热压780℃,压力30MPa,制得烧结块实际密度>95%,将制备金刚石烧结块钎焊到磨轮上。制造的磨轮卡装到陶瓷生产线上,各项指标数据见表3。其中,对比例1为市场上常用的前磨。The copper-aluminum pre-alloy powder is used in the manufacture of diamond edging wheels. The pre-grinding formula of the ceramic edging wheel is designed as 60 parts of Fe powder, 7 parts of Cu powder, 30 parts of copper-aluminum pre-alloy powder, and 3 parts of diamond. Hot pressing in a sintering machine at 780° C. and a pressure of 30 MPa, the actual density of the obtained sintered block is greater than 95%, and the prepared diamond sintered block is brazed to the grinding wheel. The manufactured grinding wheel is installed on the ceramic production line, and the index data is shown in Table 3. Among them, Comparative Example 1 is a pre-grinding commonly used in the market.

线速度为陶瓷生产线生产加工瓷砖传送带速度,加工余量10mm,当加工余量超过+2mm,认为锋利度达不到要求;在加工过程中前磨出现碰边、刮花、掉角即认定为残次品,统计加工过程中残次品数量和占比。The line speed is the speed of the ceramic tile conveyor belt in the production and processing of the ceramic production line, and the machining allowance is 10mm. When the machining allowance exceeds +2mm, the sharpness is considered to be unsatisfactory; if the front grinding occurs during the processing, it will be considered as an edge, scratching, and corner drop. Defective products, count the number and proportion of defective products during processing.

表3前磨磨边轮加工瓷砖数据对比表Table 3 Data comparison table of pre-grinding edging wheel processing ceramic tile

加工速度/(m/min)Processing speed/(m/min) 锋利度sharpness 残次品比例/(‰)Proportion of defective products/(‰) 实施例1Example 1 10~1510~15 满足Satisfy 0.30.3 对比例1Comparative Example 1 8~148~14 满足Satisfy 0.40.4

将铜铝预合金粉用于金刚石后磨制造,成分设计为Fe粉50份,Cu粉16粉,铜铝预合金粉25份,锡粉5份,金刚石4份。在金刚石热压烧结机中热压760℃,压力30MPa,制得烧结块实际密度>95%,将制备金刚石烧结块钎焊到磨轮上。制造的磨轮卡装到陶瓷生产线上,各项指标数据见表4。其中,对比例2为市场上常用的后磨。The copper-aluminum pre-alloy powder is used for diamond post-grinding, and the composition is designed as 50 parts of Fe powder, 16 parts of Cu powder, 25 parts of copper-aluminum pre-alloy powder, 5 parts of tin powder and 4 parts of diamond. Hot pressing in a diamond hot pressing sintering machine at 760° C. and a pressure of 30 MPa, the actual density of the obtained sintered block is greater than 95%, and the prepared diamond sintered block is brazed to the grinding wheel. The manufactured grinding wheel is installed on the ceramic production line, and the index data is shown in Table 4. Among them, Comparative Example 2 is a post-grinding commonly used in the market.

线速度为陶瓷生产线生产加工瓷砖传送带速度,加工精度±0.3mm,表面光滑无锯齿;在加工过程中前磨出现碰边、刮花、掉角即认定为残次品,统计加工过程中残次品数量和占比。The line speed is the speed of the ceramic tile conveyor belt in the production and processing of the ceramic production line, the processing accuracy is ±0.3mm, and the surface is smooth and free of serrations; during the processing, if the front grinding encounters edges, scratches, or corners, it will be regarded as a defective product, and the defective product in the processing process will be counted. quantity and proportion of products.

表4后磨磨边轮加工瓷砖数据对比表Table 4 Data comparison table of ceramic tile processed by post-grinding edging wheel

Figure GDA0003498209360000081
Figure GDA0003498209360000081

从上面的数据可见,添加本实施例提供的铜铝合金粉末制作的金刚石磨边轮锋利度好,加工稳定性好,可明显降低残次品率。It can be seen from the above data that the diamond edging wheel made by adding the copper-aluminum alloy powder provided in this embodiment has good sharpness and good processing stability, and can significantly reduce the defective product rate.

实施例2Example 2

本实施例提供一种铜铝预合金粉末,按照质量份包括以下成分:铝12份;锌4份;锡12份;铁3份;硅1份;镍3份;铜65份。This embodiment provides a copper-aluminum pre-alloyed powder, which includes the following components according to parts by mass: 12 parts of aluminum; 4 parts of zinc; 12 parts of tin; 3 parts of iron; 1 part of silicon; 3 parts of nickel; and 65 parts of copper.

本实施例还提供上述铜铝预合金粉末的制备方法,包括以下步骤:The present embodiment also provides a method for preparing the above-mentioned copper-aluminum pre-alloyed powder, comprising the following steps:

S10:将铝、锌、硅分别制成铜基中间合金;铜基中间合金包括铜铝合金、铜锌合金和铜硅合金。S10: aluminum, zinc and silicon are respectively made into copper-based master alloys; copper-based master alloys include copper-aluminum alloys, copper-zinc alloys and copper-silicon alloys.

S20:按照成分配比计算各金属原料的添加量,获取上述铜基中间合金,加入铜、锡、铁、镍,得到金属原料混合物。S20: Calculate the addition amount of each metal raw material according to the composition ratio, obtain the above-mentioned copper-based master alloy, and add copper, tin, iron, and nickel to obtain a metal raw material mixture.

S31:采用碱性坩埚对金属原料混合物进行熔炼。S31: Use an alkaline crucible to smelt the metal raw material mixture.

S32:添加覆盖剂精炼除渣,扒渣后浇铸得到合金铸锭。S32: adding a covering agent to refine and remove slag, and cast the alloy ingot after removing the slag.

S40:将合金铸锭在保护气体环境下,采用机械法破碎得到合金粉末。S40: The alloy ingot is crushed by mechanical method in a protective gas environment to obtain alloy powder.

在本实施例中,铜铝合金中,铝的质量占比为60%;铜锌合金中,锌的质量占比为40%;铜硅合金中,硅的质量占比为14.5%。碱性坩埚选用镁砂坩埚。覆盖剂选用氟铝酸钾、氯化锌、冰晶石、氟氢化钾,混合精炼。In this embodiment, in the copper-aluminum alloy, the mass ratio of aluminum is 60%; in the copper-zinc alloy, the mass ratio of zinc is 40%; in the copper-silicon alloy, the mass ratio of silicon is 14.5%. The alkaline crucible is made of magnesia crucible. The covering agent is selected from potassium fluoroaluminate, zinc chloride, cryolite, potassium hydrogen fluoride, mixed and refined.

本实施例提供的合金性质硬脆,破碎制粉效率高。制备合金采用德国耐驰差热分析仪(STA-449)测试合金固液相线,合金的基本性能见表5。The alloy provided by this embodiment is hard and brittle, and has high crushing and milling efficiency. The alloy was prepared by using a German NETZSCH differential thermal analyzer (STA-449) to test the solid and liquidus of the alloy. The basic properties of the alloy are shown in Table 5.

表5实施例2合金的基本性能Table 5 Basic properties of the alloy of Example 2

理论密度/(g/cm<sup>3</sup>)Theoretical density/(g/cm<sup>3</sup>) 固相线/(℃)Solidus/(℃) 液相线/(℃)Liquidus/(℃) 6.646.64 715715 820820

制备合金粉末经过破碎筛分-325目,在热压烧结机中制作烧结体样块并测试硬度和强度数据见表6。The prepared alloy powder was crushed and sieved to -325 mesh, and a sintered body sample was made in a hot pressing sintering machine and the hardness and strength data were shown in Table 6.

表6粉末烧结体基本性能Table 6 Basic properties of powder sintered body

烧结温度/(℃)Sintering temperature/(℃) 烧结压力/(Mpa)Sintering pressure/(Mpa) 硬度/HRBHardness/HRB 强度/(Mpa)Strength/(Mpa) 650650 2020 102102 243243

制备的铜铝预合金粉末可用于金刚石滚刀的制造。The prepared copper-aluminum pre-alloy powder can be used for the manufacture of diamond hob.

将铜铝预合金粉用于金刚石滚刀的制造,设计陶瓷磨边轮前磨的配方为Fe粉70份,Cu粉5份,铜铝预合金粉20份,Zn粉2份,金刚石3份。将混合均匀的粉末在金刚石热压烧结机中热压860℃,压力30MPa,制得烧结块实际密度>95%,将制备金刚石烧结块以一定角度钎焊到滚筒上。制造的滚刀装到陶瓷生产线上,各项指标数据见表7。其中,对比例3为市场上常用的滚刀。The copper-aluminum pre-alloy powder is used in the manufacture of the diamond hob, and the pre-grinding formula of the ceramic edging wheel is designed as 70 parts of Fe powder, 5 parts of Cu powder, 20 parts of copper-aluminum pre-alloy powder, 2 parts of Zn powder, and 3 parts of diamond. . The uniformly mixed powder is hot-pressed in a diamond hot-pressing sintering machine at 860° C. under a pressure of 30 MPa to obtain an actual density of the sintered block >95%. The manufactured hob is installed on the ceramic production line, and the index data is shown in Table 7. Among them, Comparative Example 3 is a commonly used hob in the market.

线速度为陶瓷生产线生产加工瓷砖传送带速度,锋利度线速下完成加工余量12mm,要求平整度<2mm;使用寿命为滚刀在加工生产线上运行时间,以天计。The line speed is the speed of the ceramic tile conveyor belt in the production and processing of the ceramic production line. The machining allowance is 12mm at the sharpness line speed, and the flatness is required to be less than 2mm. The service life is the running time of the hob on the processing line, measured in days.

表7金刚石滚刀加工瓷砖数据对比表Table 7 Data comparison table of ceramic tile processed by diamond hob

加工速度/(m/min)Processing speed/(m/min) 锋利度sharpness 平整度Flatness 使用寿命/(天)Service life/(day) 实施例2Example 2 10~1510~15 满足Satisfy 满足Satisfy 3232 对比例3Comparative Example 3 10~1510~15 满足Satisfy 满足Satisfy 3030

从上面的数据可见,添加本实施例提供的铜铝预合金粉制作的金刚石滚刀,使用寿命长,锋利度和加工精度均满足市场要求。It can be seen from the above data that the diamond hob made by adding the copper-aluminum pre-alloy powder provided in this embodiment has a long service life, and the sharpness and machining accuracy meet the market requirements.

实施例3Example 3

本实施例提供一种铜铝预合金粉末,按照质量份包括以下成分:铝18份;锌6份;锡3份;铁3份;硅2份;镍5份;铜63份。This embodiment provides a copper-aluminum pre-alloyed powder, which includes the following components according to parts by mass: 18 parts of aluminum; 6 parts of zinc; 3 parts of tin; 3 parts of iron; 2 parts of silicon; 5 parts of nickel; and 63 parts of copper.

本实施例还提供上述铜铝预合金粉末的制备方法,包括以下步骤:The present embodiment also provides a method for preparing the above-mentioned copper-aluminum pre-alloyed powder, comprising the following steps:

S10:将铝、锌、硅分别制成铜基中间合金;铜基中间合金包括铜铝合金、铜锌合金和铜硅合金。S10: aluminum, zinc and silicon are respectively made into copper-based master alloys; copper-based master alloys include copper-aluminum alloys, copper-zinc alloys and copper-silicon alloys.

S20:按照成分配比计算各金属原料的添加量,获取上述铜基中间合金,加入铜、锡、铁、镍,得到金属原料混合物。S20: Calculate the addition amount of each metal raw material according to the composition ratio, obtain the above-mentioned copper-based master alloy, and add copper, tin, iron, and nickel to obtain a metal raw material mixture.

S31:采用碱性坩埚对金属原料混合物进行熔炼。S31: Use an alkaline crucible to smelt the metal raw material mixture.

S32:添加覆盖剂精炼除渣,扒渣后浇铸得到合金铸锭。S32: adding a covering agent to refine and remove slag, and cast the alloy ingot after removing the slag.

S40:将合金铸锭在保护气体环境下,采用机械法破碎得到合金粉末。S40: The alloy ingot is crushed by mechanical method in a protective gas environment to obtain alloy powder.

在本实施例中,铜铝合金中,铝的质量占比为60%;铜锌合金中,锌的质量占比为40%;铜硅合金中,硅的质量占比为14.5%。碱性坩埚选用镁砂坩埚。覆盖剂选用氟铝酸钾、氯化锌、冰晶石、氟氢化钾,混合精炼。In this embodiment, in the copper-aluminum alloy, the mass ratio of aluminum is 60%; in the copper-zinc alloy, the mass ratio of zinc is 40%; in the copper-silicon alloy, the mass ratio of silicon is 14.5%. The alkaline crucible is made of magnesia crucible. The covering agent is selected from potassium fluoroaluminate, zinc chloride, cryolite, potassium hydrogen fluoride, mixed and refined.

本发明实施例提供的合金性质硬脆,制粉效率高。The alloys provided by the embodiments of the present invention are hard and brittle, and have high milling efficiency.

制备合金采用德国耐驰差热分析仪(STA-449)测试合金固液相线,合金的基本性能见表8。The alloy was prepared by using a German NETZSCH differential thermal analyzer (STA-449) to test the solid and liquidus of the alloy. The basic properties of the alloy are shown in Table 8.

表8实施例3合金的基本性能Table 8 Basic properties of the alloy of Example 3

理论密度/(g/cm<sup>3</sup>)Theoretical density/(g/cm<sup>3</sup>) 固相线/(℃)Solidus/(℃) 液相线/(℃)Liquidus/(℃) 5.975.97 744744 856856

制备合金粉末经过破碎筛分-325目,在热压烧结机中制作烧结体样块并测试硬度和强度数据见表9。The prepared alloy powder was crushed and sieved to -325 mesh, and a sintered body sample was made in a hot-pressing sintering machine, and the hardness and strength data were shown in Table 9.

表9粉末烧结体基本性能Table 9 Basic properties of powder sintered body

烧结温度/(℃)Sintering temperature/(℃) 烧结压力/(Mpa)Sintering pressure/(Mpa) 硬度/HRBHardness/HRB 强度/(Mpa)Strength/(Mpa) 680680 2020 115115 223223

制备的铜铝预合金粉末可用于金刚石锯片的制造。The prepared copper-aluminum pre-alloy powder can be used for the manufacture of diamond saw blades.

将铜铝预合金粉用于金刚石锯片的制造,设计陶瓷锯片的配方为Fe粉30份,Co粉10粉,Cu粉20份,铜铝预合金粉30份,锡粉5份,锌粉1份,金刚石4份。在金刚石热压烧结机中热压750℃,压力30MPa,制得烧结块实际密度>95%,将制备金刚石烧结块钎焊到锯片基体上。采用衢州市红日陶瓷机械有限公司生产的HR-2/800陶瓷连续介砖机进行切割,切割对象为佛山产果釉面抛光墙砖,切割出现崩边、磨花现象时停止切割,统计陶瓷切割长度以对比使用寿命,单位时间内切割方数对比产品锋利度,通过客户应用和产品性能对比见表10。其中,对比例4为是市场上常用的锯片。The copper-aluminum pre-alloy powder is used in the manufacture of diamond saw blades. The formula of the designed ceramic saw blade is 30 parts of Fe powder, 10 parts of Co powder, 20 parts of Cu powder, 30 parts of copper-aluminum pre-alloy powder, 5 parts of tin powder, and 5 parts of zinc powder. 1 part of powder, 4 parts of diamond. Hot pressing in a diamond hot pressing sintering machine at 750° C. and pressure of 30 MPa, the actual density of the obtained sintered block is greater than 95%, and the prepared diamond sintered block is brazed to the saw blade substrate. The HR-2/800 ceramic continuous medium brick machine produced by Quzhou Hongri Ceramic Machinery Co., Ltd. is used for cutting. The cutting object is the glazed and polished wall tiles produced in Foshan. The cutting is stopped when the edges are chipped or worn, and the ceramics are counted. The cutting length is compared with the service life, the number of cutting squares per unit time is compared with the sharpness of the product, and the comparison of customer application and product performance is shown in Table 10. Among them, Comparative Example 4 is a commonly used saw blade in the market.

表10锯片加工瓷砖数据对比表Table 10 Saw blade processing ceramic tile data comparison table

使用寿命/(m)Service life/(m) 锯切效率/(m<sup>2</sup>/h)Sawing efficiency/(m<sup>2</sup>/h) 实施例3Example 3 32003200 5.55.5 对比例4Comparative Example 4 31003100 5.45.4

添加铜铝预合金粉末制作的锯片寿命长,锋利度高,可满足市场应用。The saw blade made by adding copper-aluminum pre-alloy powder has long service life and high sharpness, which can meet the market application.

实施例4Example 4

本实施例提供一种铜铝预合金粉末,按照质量份包括以下成分:铝15份;锌2份;锡2份;铁4份;硅2份;镍4份;铜71份。This embodiment provides a copper-aluminum pre-alloyed powder, which includes the following components according to parts by mass: 15 parts of aluminum; 2 parts of zinc; 2 parts of tin; 4 parts of iron; 2 parts of silicon; 4 parts of nickel; and 71 parts of copper.

本实施例还提供上述铜铝预合金粉末的制备方法,包括以下步骤:The present embodiment also provides a method for preparing the above-mentioned copper-aluminum pre-alloyed powder, comprising the following steps:

S10:将铝、锌、硅分别制成铜基中间合金;铜基中间合金包括铜铝合金、铜锌合金和铜硅合金。S10: aluminum, zinc and silicon are respectively made into copper-based master alloys; copper-based master alloys include copper-aluminum alloys, copper-zinc alloys and copper-silicon alloys.

S20:按照成分配比计算各金属原料的添加量,获取上述铜基中间合金,加入铜、锡、铁、镍,得到金属原料混合物。S20: Calculate the addition amount of each metal raw material according to the composition ratio, obtain the above-mentioned copper-based master alloy, and add copper, tin, iron, and nickel to obtain a metal raw material mixture.

S31:采用碱性坩埚对金属原料混合物进行熔炼。S31: Use an alkaline crucible to smelt the metal raw material mixture.

S32:添加覆盖剂精炼除渣,扒渣后浇铸得到合金铸锭。S32: adding a covering agent to refine and remove slag, and cast the alloy ingot after removing the slag.

S40:将合金铸锭在保护气体环境下,采用机械法破碎得到合金粉末。S40: The alloy ingot is crushed by mechanical method in a protective gas environment to obtain alloy powder.

在本实施例中,铜铝合金中,铝的质量占比为50%;铜锌合金中,锌的质量占比为70%;铜硅合金中,硅的质量占比为5%。碱性坩埚选用氧化钙坩埚。覆盖剂选用氟铝酸钾、氯化锌、冰晶石、氟氢化钾,混合精炼。In this embodiment, in the copper-aluminum alloy, the mass ratio of aluminum is 50%; in the copper-zinc alloy, the mass ratio of zinc is 70%; in the copper-silicon alloy, the mass ratio of silicon is 5%. The alkaline crucible is made of calcium oxide crucible. The covering agent is selected from potassium fluoroaluminate, zinc chloride, cryolite, potassium hydrogen fluoride, mixed and refined.

实施例5Example 5

本实施例提供一种铜铝预合金粉末,按照质量份包括以下成分:铝20份;锌3份;锡10份;铁5份;硅3份;镍4份;铜55份。This embodiment provides a copper-aluminum pre-alloyed powder, which includes the following components according to parts by mass: 20 parts of aluminum; 3 parts of zinc; 10 parts of tin; 5 parts of iron; 3 parts of silicon; 4 parts of nickel; and 55 parts of copper.

本实施例还提供上述铜铝预合金粉末的制备方法,包括以下步骤:The present embodiment also provides a method for preparing the above-mentioned copper-aluminum pre-alloyed powder, comprising the following steps:

S10:将铝、锌、硅分别制成铜基中间合金;铜基中间合金包括铜铝合金、铜锌合金和铜硅合金。S10: aluminum, zinc and silicon are respectively made into copper-based master alloys; copper-based master alloys include copper-aluminum alloys, copper-zinc alloys and copper-silicon alloys.

S20:按照成分配比计算各金属原料的添加量,获取上述铜基中间合金,加入铜、锡、铁、镍,得到金属原料混合物。S20: Calculate the addition amount of each metal raw material according to the composition ratio, obtain the above-mentioned copper-based master alloy, and add copper, tin, iron, and nickel to obtain a metal raw material mixture.

S31:采用碱性坩埚对金属原料混合物进行熔炼。S31: Use an alkaline crucible to smelt the metal raw material mixture.

S32:添加覆盖剂精炼除渣,扒渣后浇铸得到合金铸锭。S32: adding a covering agent to refine and remove slag, and cast the alloy ingot after removing the slag.

S40:将合金铸锭在保护气体环境下,采用机械法破碎得到合金粉末。S40: The alloy ingot is crushed by mechanical method in a protective gas environment to obtain alloy powder.

在本实施例中,铜铝合金中,铝的质量占比为53%;铜锌合金中,锌的质量占比为50%;铜硅合金中,硅的质量占比为20%。碱性坩埚选用氧化锆坩埚。覆盖剂选用氟铝酸钾、氯化锌、冰晶石、氟氢化钾,混合精炼。In this embodiment, in the copper-aluminum alloy, the mass ratio of aluminum is 53%; in the copper-zinc alloy, the mass ratio of zinc is 50%; in the copper-silicon alloy, the mass ratio of silicon is 20%. Alkaline crucibles are zirconia crucibles. The covering agent is selected from potassium fluoroaluminate, zinc chloride, cryolite, potassium hydrogen fluoride, mixed and refined.

实施例6Example 6

本实施例提供一种铜铝预合金粉末,按照质量份包括以下成分:铝22份;锌5份;锡7份;铁4份;硅4份;镍5份;铜53份。This embodiment provides a copper-aluminum pre-alloyed powder, which includes the following components according to parts by mass: 22 parts of aluminum; 5 parts of zinc; 7 parts of tin; 4 parts of iron; 4 parts of silicon; 5 parts of nickel; and 53 parts of copper.

本实施例还提供上述铜铝预合金粉末的制备方法,包括以下步骤:The present embodiment also provides a method for preparing the above-mentioned copper-aluminum pre-alloyed powder, comprising the following steps:

S10:将铝、锌、硅分别制成铜基中间合金;铜基中间合金包括铜铝合金、铜锌合金和铜硅合金。S10: aluminum, zinc and silicon are respectively made into copper-based master alloys; copper-based master alloys include copper-aluminum alloys, copper-zinc alloys and copper-silicon alloys.

S20:按照成分配比计算各金属原料的添加量,获取上述铜基中间合金,加入铜、锡、铁、镍,得到金属原料混合物。S20: Calculate the addition amount of each metal raw material according to the composition ratio, obtain the above-mentioned copper-based master alloy, and add copper, tin, iron, and nickel to obtain a metal raw material mixture.

S31:采用碱性坩埚对金属原料混合物进行熔炼。S31: Use an alkaline crucible to smelt the metal raw material mixture.

S32:添加覆盖剂精炼除渣,扒渣后浇铸得到合金铸锭。S32: adding a covering agent to refine and remove slag, and cast the alloy ingot after removing the slag.

S40:将合金铸锭在保护气体环境下,采用机械法破碎得到合金粉末。S40: The alloy ingot is crushed by mechanical method in a protective gas environment to obtain alloy powder.

在本实施例中,铜铝合金中,铝的质量占比为57%;铜锌合金中,锌的质量占比为60%;铜硅合金中,硅的质量占比为10%。碱性坩埚选用氧化锆坩埚。覆盖剂选用氟铝酸钾、氯化锌、冰晶石、氟氢化钾,混合精炼。In this embodiment, in the copper-aluminum alloy, the mass ratio of aluminum is 57%; in the copper-zinc alloy, the mass ratio of zinc is 60%; in the copper-silicon alloy, the mass ratio of silicon is 10%. Alkaline crucibles are zirconia crucibles. The covering agent is selected from potassium fluoroaluminate, zinc chloride, cryolite, potassium hydrogen fluoride, mixed and refined.

最后应说明的是:以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1.一种铜铝预合金,其特征在于,包括以下成分:1. a copper-aluminum pre-alloy, is characterized in that, comprises following composition: 铝,12质量份至24质量份;Aluminum, 12 to 24 parts by mass; 锌,4质量份至8质量份;Zinc, 4 to 8 parts by mass; 锡,0质量份至12质量份;Tin, 0 to 12 parts by mass; 铁,3质量份至5质量份;Iron, 3 to 5 parts by mass; 硅,1质量份至4质量份;Silicon, 1 to 4 parts by mass; 镍,3质量份至5质量份;Nickel, 3 to 5 parts by mass; 铜,42质量份至77质量份。Copper, 42 to 77 parts by mass. 2.根据权利要求1所述的铜铝预合金,其特征在于,包括以下成分:2. copper-aluminum pre-alloy according to claim 1, is characterized in that, comprises following composition: 铝,15质量份至20质量份;Aluminum, 15 to 20 parts by mass; 锌,4质量份至6质量份;Zinc, 4 to 6 parts by mass; 锡,2质量份至10质量份;Tin, 2 to 10 parts by mass; 铁,3质量份至5质量份;Iron, 3 to 5 parts by mass; 硅,1质量份至4质量份;Silicon, 1 to 4 parts by mass; 镍,3质量份至5质量份;Nickel, 3 to 5 parts by mass; 铜,50质量份至72质量份。Copper, 50 to 72 parts by mass. 3.一种如权利要求1或2所述的铜铝预合金的制备方法,其特征在于,包括以下步骤:3. a preparation method of copper-aluminum pre-alloy as claimed in claim 1 or 2, is characterized in that, comprises the following steps: S10:将铝、锌、硅分别制成铜基中间合金;所述铜基中间合金包括铜铝合金、铜锌合金和铜硅合金;S10: make aluminum, zinc, and silicon into copper-based master alloys; the copper-based master alloys include copper-aluminum alloys, copper-zinc alloys, and copper-silicon alloys; S20:在所述铜基中间合金中加入铜、锡、铁、镍,得到金属原料混合物;S20: adding copper, tin, iron and nickel to the copper-based master alloy to obtain a metal raw material mixture; S30:对所述金属原料混合物进行熔炼,得到合金铸锭;S30: smelting the metal raw material mixture to obtain an alloy ingot; 所述合金铸锭为所述铜铝预合金。The alloy ingot is the copper-aluminum pre-alloy. 4.根据权利要求3所述的制备方法,其特征在于,所述S30:对所述金属原料混合物进行熔炼,得到所述铜铝预合金;包括:4. The preparation method according to claim 3, wherein the S30: smelting the metal raw material mixture to obtain the copper-aluminum pre-alloy; comprising: S31:采用碱性坩埚对所述金属原料混合物进行熔炼;S31: use an alkaline crucible to smelt the metal raw material mixture; S32:添加覆盖剂精炼除渣,扒渣后浇铸得到所述合金铸锭。S32: Add a covering agent to refine and remove slag, and cast the alloy ingot after slag removal. 5.根据权利要求4所述的制备方法,其特征在于,5. preparation method according to claim 4, is characterized in that, 所述碱性坩埚选自镁砂坩埚、氧化钙坩埚或氧化锆坩埚。The alkaline crucible is selected from magnesia crucible, calcium oxide crucible or zirconia crucible. 6.根据权利要求4所述的方法,其特征在于,6. The method of claim 4, wherein 所述覆盖剂包括氟铝酸钾、氯化锌、冰晶石、氟氢化钾中的一种或多种。The covering agent includes one or more of potassium fluoroaluminate, zinc chloride, cryolite, and potassium hydrogen fluoride. 7.根据权利要求3所述的制备方法,其特征在于,还包括:7. preparation method according to claim 3, is characterized in that, also comprises: S40:将所述合金铸锭在保护气体环境下,采用机械法破碎得到合金粉末。S40: The alloy ingot is crushed by mechanical method in a protective gas environment to obtain alloy powder. 8.根据权利要求3所述的方法,其特征在于8. The method of claim 3, wherein 所述铜铝合金中,铝的质量占比为50-60%;和/或In the copper-aluminum alloy, the mass ratio of aluminum is 50-60%; and/or 所述铜锌合金中,锌的质量占比为40-70%;和/或In the copper-zinc alloy, the mass proportion of zinc is 40-70%; and/or 所述铜硅合金中,硅的质量占比为5-20%。In the copper-silicon alloy, the mass proportion of silicon is 5-20%. 9.一种金刚石工具,其特征在于,9. A diamond tool, characterized in that, 制备所述金刚石工具的原料包括如权利要求1或2任一项所述的铜铝预合金。The raw material for preparing the diamond tool includes the copper-aluminum pre-alloy as claimed in any one of claims 1 or 2. 10.根据权利要求9所述的金刚石工具,其特征在于,10. The diamond tool of claim 9, wherein 所述铜铝预合金在所述原料中的质量占比为10-50%。The mass ratio of the copper-aluminum pre-alloy in the raw material is 10-50%.
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CN103917733A (en) * 2011-10-25 2014-07-09 长年Tm公司 High-strength, high-hardness binders and drilling tools formed using the same
CN103627946A (en) * 2013-12-04 2014-03-12 郑日升 Self-grinding diamond tool matrix material
CN106032555A (en) * 2015-03-18 2016-10-19 中国科学院宁波材料技术与工程研究所 A kind of pellet and its preparation method
CN109531457A (en) * 2018-12-29 2019-03-29 郑州机械研究所有限公司 A kind of powdered activated solder of diamond abrasive tool

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